nVision Operation Manual • Page 9
Recording Rate (Set in CrystalControl)
Elapsed recording time to ll memory
(500,000 data points with two modules)
10 readings per second Approximately 14 hours capacity
1 reading per second
Approximately 140 hours capacity
(or approximately 6 days)
1 reading per minute
Approximately 8300 hours
(or approximately 375 days* )
*Note: batteries will self drain in this time period.
The nVision can store a maximum of 64 recording runs before data must be erased though the
Erase All Runs command in the Setup menu.
CAUTION: Never remove power (either battery or USB power) when Recording.
. .Power.button.
Power up the nVision product by pressing the power button. The nVision will automat-
ically power down if not used for 20 minutes to conserve battery life (or some other duration set
in CrystalControl).
Adjust your Automatic Shuto time (shut o time in absence of key press)
to optimize battery life to suit your needs. Feature is adjustable from 30 seconds to always on
(until batteries are dead). The timer will not shut o your nVision while recording
When powered by USB, the nVision does not employ any power management strategies. There-
fore, it will not automatically shut o to the settings dened by CrystalControl.
CAUTION: Never remove power when Recording.
. .Zero.(PM)
To zero the nVision you must press the button for at least 1 second. The display will then
briey ash all dashed lines (- - - - -), indicating that it has been re-zeroed. If you attempt to zero
the gauge while more than 20 PSI is applied (or the Zero Limit set with CrystalControl), the com-
mand will be ignored, and “- -HI- -” will be displayed.
You can adjust the Zero Limit at which the Zero button will display “- -HI- -”
in CrystalControl. For instance, you could set the maximum zero to 3000 PSI, if you need to mix
high pressure gases. You can disable the zero button by setting the Zero Limit value to zero.
WARNING:
This gauge can display zero pressure when connected to a source of pressure!
Do not rely on the display indication before disconnecting – it may not be indicating true
pressure. Never disconnect pressure instrumentation without rst relieving system pressure!
To clear the zero value on an nVision, hold the button for 3 seconds until the display changes
from (- - - - -) to (- - -).
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